Vaporizer and sterilizer.



l. G. DURAN.

VAPORIZER AND STERILIZEB.

APPLICATION FILED MAY I2. |911.

1,291,442, Patented Jan. 14, 1919.

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JOHN Gr. DURAN, OF CAMBERWELL, LONDON, ENGLAND.

VAPORIZER .AND STERILIZER.

Specification of Letters Patent.

Patented Jan. 14, 1919.

Application filed May 12, 1917. Serial No. 168,306.

To all whom t may concern:

Be it known that I, Jol-IN GiLLAN DORAN, a subject of the King of Great Britain and Ireland, residing at 6 Crofton road, Camberwell, London, England, have invented new and useful Improvements in Vaporizers and Sterilizers, of which the follow- .ing is a specification.

My invention relates to improvements in vaporizers and `sterilizers and is designed to provide means whereby medicated steam or steam impregnated with disinfectant or similar substances may be supplied to steam or inhalation baths, disinfectors or for impregnating any material with vapor or any Vsimilar applicance at any required density yas a collector or distributer, passes the medicated or disinfected steam to any desired point.

My invention is illustrated by way of eX- .ample in the accompanying drawings, in

which- Figure 1 shows a transverse section, and

Fig. 2 shows a plan view of the apparatus. with the cover removed.

Referring now to the drawings z-As shown more particularly in Fig. 1 the vessel vforming the vaporizer or sterilizer,

which is not necessarily cylindrical ,as shown but may be rectangular in shape, is divided into three compartments or chambers by means of the perforated plates l and 2. The top plate 1 is movable and forms a division between the upper compartment and the middle compartment of the vessel. The lower plate 2 is fixed and divides the middle compartment from the lower compartment. The upper chamber of the vessel forms a collecting chamber for the main steam supply which forms the distributing steam, and the medicated or disinfected steam arising from the middle compartment. The lower compartment which receives the steam for vaporizing is regulated to the required temperature before the steam passes through the plate 2 into the middle compartment. This middle compartment contains a pad of absorbent material 3 which has received the medicament or disinfectant to be Vaporized. This pad 3 is placed under the necessary degree of compression by the nut 4 screwed down over the screw 5 upon the said top plate 1 Ito allow of the desired flow of vapor through the middle compartment. The pipe G leading into the middle chamber forms the means whereby the absorbent pad 3 can be constantly supplied with the medicament or the disinfectant to be vaporized as required without interrupting the operation and action of the vaporizer. This pipe 6 may be fitted with a funnel and tap. The lower compartment may be itted with a draw off pipe 10. The total area of .the perforations in the bottom plate are substantially equal to the area of the diameter of the shunt or branch pipe 8, while the area of the perforations in the top plate is greater than the area of the perforations in the bottom plate.

The operation of the apparatus is as follows:

The main steam supply is admitted through the pipe 7 to the upper compartment of the vessel. A certain proportion of the steam supply passes through the branch or shunt pipe 8 into the lower compartment of the vessel. The desired quan tity of steam admitted through the A,shunt pipe 8 is controlled by the tap 9 or some similar valve or regulator. It will be seen that the pipe 8 is of much smaller kdiameter than the main pipe 7 A suitable temperature for the production of the vaporvcan be maintained in the lower part of the apparatus and the vapor so generated in the middle compartment passes into the main steam supply passing through the upper compartment which acting as a collector and distributer, passes the medicated or disinfected steam to any desired point. The greater the flow of high pressure steam through the upper compartment the greater the suction induced by such flow upon the steam rising through the medicated material in the middle compartment.

What I claim is 1. A steam vaporizer or sterilizer comprising a vessel, a main steam supply to said vessel, a subsidiary steam supply to said vessel, an upper compartment open to the main steam supply, a middle compartment containing the material to be vaporized, a lower compartment open to the subsidiary steam supply and perforated plates separating said compartments.

2. A steam vaporizer or sterilizer comprising a vessel, a main steam supply to said vessel, a subsidiary steam supply to said vessel, an upper compartment open to the main steam supply, a middle compartment containing the material to be vaporized, a lower compartment open to the subsidiary steam supply, a fixed perforated plate sep arating the lower compartment from the middle compartment, a movable plate separating the middle compartment from the upper compartment and means for pressing said movable plate down upon the material to be vaporized in said middle compartment to adjust the flow of vapor through said compartment.

3. A steam vaporizer or sterilizer comprising a Vessel, a main steam supply to said vessel, a subsidiary ste-am supply to said vessel, an upper compartment open to the main steam supply, a middle compartment containing the material to be vaporized, a lower compartment open to the subsidiary steam supply, a fixed perforated plate separating the lower compartment from the middle compartment, a movable plate separating the middle compartment from the upper compartment, a screwed spindle guiding said movable plate and a nut screwed over said spindle and adapted to press down said movable plate upon the material to be vaporized in said middle compartment to adjust the How of vapor through said compartment.

4. A steam vaporizer or sterilizer 'comprising a Vessel, a main steam pipe, a shunt pipe of smaller diameter branching from said steam pipe, an upper compartment open to the main steam pipe, a middle compartment containing the material to be vaporized, a lower compartment open to the shunt pipe and perforated plates separating said compartments.

5. A steam vaporizer or sterilizer comprising a vessel, a main steam supply to said vessel, a subsidiary steam supply to said vessel, an upper compartment open to the main Steam supply, a middle compartment containing the material to be vaporized, a pipe leading to said middle compartment through which the medicament or disinfectant to be vaporized can be supplied to the material in said compartment during the operation and action of the vaporizer, a lower compartment open to the subsidiary steam supply and perforated plates separating said compartments.

6. A steam vaporizer or sterilizer comprising a. vessel, a main steam pipe, a shunt pipe of smaller diameter branching from said main steam pipe, an upper compartment open to said main steam pipe, a middle com partment containing` the material to be vaporized, a pipe leading to the middle compartment through which the medicament or disinfectant to be vaporized can be supplied to the material in said compartment during the operation and action of the vaporizer, a lower compartment open to the shunt pipe, a fixed perforated plate separating the lower compartment from the middle compartment, a movable plate separating the middle compartment from the upper compartment, a screwed spindle guiding said movable plate and a nut screwed over said spindle and adapted to press down said movable plate upon the material to be vaporized in said middle compartment to adjust the liow of vapor through said compartment.

In testimonyV whereof I sign my name to this specification in the presence of two subscribing witnesses.

J. Gr. DORAN. Witnesses ARTUHR J. STEPHENS, H. W. K. JENNINGS.

Copies of this patent may be obtained for ve cents each, by addressing the Gommissioner of Patente, Washington, D. C. 

